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102557 (1999 UY23)
Classification: Main-belt Asteroid          SPK-ID: 2102557
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1799906409084645 3.2427e-08  
a 2.279329499075637 9.3452e-09 au
q 1.869071521695444 7.66e-08 au
i 6.181425712996588 4.3586e-06 deg
node 261.1353815643777 3.3392e-05 deg
peri 61.29885567612051 3.5554e-05 deg
M 100.0627836854951 1.1842e-05 deg
tp 2458851.135177822356
(2020-Jan-02.63517782)		 4.0981e-05 TDB
period 1256.924216492525
3.44		 7.73e-06
2.116e-08		 d
yr
n .2864134490181022 1.7614e-09 deg/d
Q 2.68958747645583 1.1027e-08 au
   Orbit Determination Parameters
   # obs. used (total)      762  
   data-arc span      12932 days (35.41 yr)  
   first obs. used      1985-08-23  
   last obs. used      2021-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55568  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 08:31:46  

Additional Information
 Earth MOID = .863805 au 
 Jupiter MOID = 2.6283 au 
 T_jup = 3.577 
[ show covariance matrix ]

[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.9   n/a MPO385433  

102557 (1999 UY23)          Discovered 1999-Oct-28 by CSS at Catalina
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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Alternate Designations
 1999 UY23 = 1985 QQ3 = 1998 FC105 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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